From 95cbc98a53e7001dcc7f3bfba072b367ec060ee5 Mon Sep 17 00:00:00 2001
From: t00fcxen <t00fcxen>
Date: Thu, 9 Oct 2014 18:45:38 +0000
Subject: Sync with Mavericks sources.

git-svn-id: http://sctp-refimpl.googlecode.com/svn/trunk/KERN/usrsctp/usrsctplib@9042 9df1edf5-d72c-5b5f-11c0-5f5209eb73f7
---
 netinet/sctp_callout.c | 89 +++++++++++++++++++++++++++++++++++++++++---------
 netinet/sctp_callout.h |  6 +++-
 netinet/sctp_usrreq.c  |  4 ++-
 3 files changed, 81 insertions(+), 18 deletions(-)

diff --git a/netinet/sctp_callout.c b/netinet/sctp_callout.c
index 67b7566..3174e3f 100755
--- a/netinet/sctp_callout.c
+++ b/netinet/sctp_callout.c
@@ -30,9 +30,27 @@
  * THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#if defined(__Userspace__)
+#include <sys/types.h>
+#if !defined (__Userspace_os_Windows)
+#include <sys/wait.h>
+#include <unistd.h>
+#include <pthread.h>
+#endif
+#if defined(__Userspace_os_NaCl)
+#include <sys/select.h>
+#endif
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+#include <netinet/sctp_sysctl.h>
+#include <netinet/sctp_pcb.h>
+#else
 #include <netinet/sctp_os.h>
 #include <netinet/sctp_callout.h>
 #include <netinet/sctp_pcb.h>
+#endif
 
 /*
  * Callout/Timer routines for OS that doesn't have them
@@ -46,10 +64,8 @@ extern int ticks;
 /*
  * SCTP_TIMERQ_LOCK protects:
  * - SCTP_BASE_INFO(callqueue)
- * - sctp_os_timer_current: current timer in process
  * - sctp_os_timer_next: next timer to check
  */
-static sctp_os_timer_t *sctp_os_timer_current = NULL;
 static sctp_os_timer_t *sctp_os_timer_next = NULL;
 
 void
@@ -117,24 +133,16 @@ sctp_os_timer_stop(sctp_os_timer_t *c)
 	return (1);
 }
 
-#if defined(__APPLE__)
-/*
- * For __APPLE__, use a single main timer at a faster resolution than
- * fastim.  The timer just calls this existing callout infrastructure.
- */
-#endif
-void
-sctp_timeout(void *arg SCTP_UNUSED)
+static void
+sctp_handle_tick(int delta)
 {
 	sctp_os_timer_t *c;
 	void (*c_func)(void *);
 	void *c_arg;
 
 	SCTP_TIMERQ_LOCK();
-#if defined(__APPLE__)
 	/* update our tick count */
-	ticks += SCTP_BASE_VAR(sctp_main_timer_ticks);
-#endif
+	ticks += delta;
 	c = TAILQ_FIRST(&SCTP_BASE_INFO(callqueue));
 	while (c) {
 		if (c->c_time <= ticks) {
@@ -143,11 +151,9 @@ sctp_timeout(void *arg SCTP_UNUSED)
 			c_func = c->c_func;
 			c_arg = c->c_arg;
 			c->c_flags &= ~SCTP_CALLOUT_PENDING;
-			sctp_os_timer_current = c;
 			SCTP_TIMERQ_UNLOCK();
 			c_func(c_arg);
 			SCTP_TIMERQ_LOCK();
-			sctp_os_timer_current = NULL;
 			c = sctp_os_timer_next;
 		} else {
 			c = TAILQ_NEXT(c, tqe);
@@ -155,9 +161,60 @@ sctp_timeout(void *arg SCTP_UNUSED)
 	}
 	sctp_os_timer_next = NULL;
 	SCTP_TIMERQ_UNLOCK();
+}
 
 #if defined(__APPLE__)
-	/* restart the main timer */
+void
+sctp_timeout(void *arg SCTP_UNUSED)
+{
+	sctp_handle_tick(SCTP_BASE_VAR(sctp_main_timer_ticks));
 	sctp_start_main_timer();
+}
 #endif
+
+#if defined(__Userspace__)
+#define TIMEOUT_INTERVAL 10
+
+void *
+user_sctp_timer_iterate(void *arg)
+{
+	for (;;) {
+#if defined (__Userspace_os_Windows)
+		Sleep(TIMEOUT_INTERVAL);
+#else
+		struct timeval timeout;
+
+		timeout.tv_sec  = 0;
+		timeout.tv_usec = 1000 * TIMEOUT_INTERVAL;
+		select(0, NULL, NULL, NULL, &timeout);
+#endif
+		if (SCTP_BASE_VAR(timer_thread_should_exit)) {
+			break;
+		}
+		sctp_handle_tick(MSEC_TO_TICKS(TIMEOUT_INTERVAL));
+	}
+	return (NULL);
 }
+
+void
+sctp_start_timer(void)
+{
+	/*
+	 * No need to do SCTP_TIMERQ_LOCK_INIT();
+	 * here, it is being done in sctp_pcb_init()
+	 */
+#if defined (__Userspace_os_Windows)
+	if ((SCTP_BASE_VAR(timer_thread) = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)user_sctp_timer_iterate, NULL, 0, NULL)) == NULL) {
+		SCTP_PRINTF("ERROR; Creating ithread failed\n");
+	}
+#else
+	int rc;
+
+	rc = pthread_create(&SCTP_BASE_VAR(timer_thread), NULL, user_sctp_timer_iterate, NULL);
+	if (rc) {
+		SCTP_PRINTF("ERROR; return code from pthread_create() is %d\n", rc);
+	}
+#endif
+}
+
+#endif
diff --git a/netinet/sctp_callout.h b/netinet/sctp_callout.h
index 2782945..c53c5a4 100755
--- a/netinet/sctp_callout.h
+++ b/netinet/sctp_callout.h
@@ -64,7 +64,6 @@ __FBSDID("$FreeBSD$");
 #endif
 
 extern int ticks;
-extern void sctp_start_timer();
 #endif
 
 TAILQ_HEAD(calloutlist, sctp_callout);
@@ -94,6 +93,11 @@ int sctp_os_timer_stop(sctp_os_timer_t *);
 #define	SCTP_OS_TIMER_ACTIVE(tmr) ((tmr)->c_flags & SCTP_CALLOUT_ACTIVE)
 #define	SCTP_OS_TIMER_DEACTIVATE(tmr) ((tmr)->c_flags &= ~SCTP_CALLOUT_ACTIVE)
 
+#if defined(__Userspace__)
+void sctp_start_timer(void);
+#endif
+#if defined(__APPLE__)
 void sctp_timeout(void *);
+#endif
 
 #endif
diff --git a/netinet/sctp_usrreq.c b/netinet/sctp_usrreq.c
index 1eee82f..362d353 100755
--- a/netinet/sctp_usrreq.c
+++ b/netinet/sctp_usrreq.c
@@ -56,7 +56,9 @@ __FBSDID("$FreeBSD: head/sys/netinet/sctp_usrreq.c 272750 2014-10-08 15:29:49Z t
 #include <netinet/sctp_timer.h>
 #include <netinet/sctp_auth.h>
 #include <netinet/sctp_bsd_addr.h>
-#if !defined(__Userspace__)
+#if defined(__Userspace__)
+#include <netinet/sctp_callout.h>
+#else
 #include <netinet/udp.h>
 #endif
 
-- 
cgit v1.2.3